title: Dissociation of oxygen on Ag(100) induced by inelastic electron tunneling.
abstract: Scanning tunneling microscopy (STM) is used to study the dissociation of molecular oxygen on Ag(100) induced by inelastic electron tunneling (IET) at 5 K. This dissociation is possible above 3.3 V with a yield of (3.63 ± 0.47) × 10(-9) per electron. Dissociation leads to three different types of hot atom motion: lateral motion, a cannon ball mechanism, and abstractive dissociation. Analysis of the I-t characteristics during dissociation suggests that the dissociation is proceeded by an adsorption site change.
authors.affiliation: Institut für Festkörperphysik, Abteilung ATMOS, Leibniz Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany.
authors.forename: Carsten
authors.initials: C
authors.lastname: Sprodowski
authors.forename: Michael
authors.initials: M
authors.lastname: Mehlhorn
authors.forename: Karina
authors.initials: K
authors.lastname: Morgenstern
mesh_terms: D000327:Adsorption; D004058:Diffusion; D004553:Electric Conductivity; D004583:Electrons; D016252:Microscopy, Scanning Tunneling / Q000295:instrumentation* / Q000379:methods; D010100:Oxygen / Q000737:chemistry*; D011868:Radioisotopes / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011868:Radioisotopes; D012834:Silver; D010100:Oxygen